Help me put please wit my work

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Explain how you divide powers with like bases. discuss why the bases have to be the same. how are these rules similar to the rules for multiplying powers with like bases.